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8241765: Shenandoah: AARCH64 need to save/restore call clobbered registers before calling keepalive barrier

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Reviewed-by: rkennke, smonteith, aph
This commit is contained in:
Zhengyu Gu 2020-03-28 11:00:09 -04:00
parent fee15cac0c
commit 6b6c5bd622
1 changed files with 3 additions and 1 deletions
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4
src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2018, 2019, Red Hat, Inc. All rights reserved.
* Copyright (c) 2018, 2020, Red Hat, Inc. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -384,6 +384,7 @@ void ShenandoahBarrierSetAssembler::load_at(MacroAssembler* masm, DecoratorSet d
// 3: apply keep-alive barrier if needed
if (ShenandoahBarrierSet::need_keep_alive_barrier(decorators, type)) {
__ enter();
__ push_call_clobbered_registers();
satb_write_barrier_pre(masm /* masm */,
noreg /* obj */,
dst /* pre_val */,
@ -391,6 +392,7 @@ void ShenandoahBarrierSetAssembler::load_at(MacroAssembler* masm, DecoratorSet d
tmp1 /* tmp */,
true /* tosca_live */,
true /* expand_call */);
__ pop_call_clobbered_registers();
__ leave();
}
}